Midea AOUAMI AQS60X1o Installation & Owner's Manual page 73

2) PCB B, Main control board
CN21
8
CN18
7
6
CN10
5
CN7
4
CN20
3
CN27
2
1
CN38
Coding Assembly unit
1
Port for ground wire(CN38)
2
Port for 2-way valve 6(CN27)
3 Port for 2-way valve 5(CN20)
4 Port for eletric heating tape2(CN7)
5 Port for eletric heating tape1(CN10)
6 Reserved(CN11)
7 Port for 4-way value(CN18)
8 Reserved(CN21)
9 Power supply port from PCB C(CN41)
10 Port for communication with Power Meter(CN26)
Port for communication with hydro-box
11
control board (CN24)
12 Port for communication with PCB C(CN4)
13 Port for pressure sensor(CN6)
14 Port for communication with PCB A(CN36)
15 Port for temp.sensor Th(CN5)
9 10 11
CN41 CN26 CN24
A
ON ON
ON ON
1 2 3 1 2 3
1 2 3 1 2 3
S5 S6
CN11
S3
20V
1 2 4
V i n
6 7 8
+
CN109
Coding
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
69
12 13
CN4 CN6
CN36
CN5
CN8
CN9
CN31
CN29
CN35
CN28
SW3 SW4
CN37
CN22
CN30
CN53
Assembly unit
Port for temp.sensor Tp(CN8)
Port for outdoor ambient temp. sensor and
condenser temp.sensor(CN9)
Digital display(DSP1)
DIP switch(S5,S6)
Port for low pressure switch(CN31)
Port for high pressure switch and quick
check(CN29)
Rotary dip switch(S3)
Port for temp.sensors(TW_out, TW_in,
T1, T2,T2B )(CN35)(Reserved)
Port for communication XYE(CN28)
Key for force cool&check(S3,S4)
Port for communication H1H2E(CN37)
Port for electrical expansion value(CN22)
Port for fan 15VDC power supply(CN30)
Port for fan 310VDC power supply(CN53)
Port for fan(CN109)
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30